X valve, lvl 10
CP Rail and on/off
-Position in which it puts the tank
Not for everybody
The rail/on-off combo is a great alternative to a Uni-Mount. I like the CP rail because it had side-screws, a pimp jewel, and it's pretty cheap. It allows more fine-tuning than a Uni-Mount, and you can also use it for rail-mounted adjustable tanks. The side screws are 10/32, which is nice because those are easy to replace if lost.
Great if you're the type of person who dislikes drops.